Mandevilla plant named ‘PATMANROS3’

ABSTRACT

A new and distinct Mandevilla plant named ‘PATMANROS3’ which is characterized by an upright and freely branching growth habit, an abundance of dark green foliage, flowers with a white outer floral tube, very light red-purple flower petals that become progressively darker towards and at the margins, a dark red-purple to orange-red inner floral tube, as well as the stability of these characteristics from generation to generation.

Latin name of the genus and species: The Latin name of the genus and species of the novel variety disclosed herein is Mandevilla sanderi (Hemsl.) Woodson.

Variety denomination: The inventive variety of Mandevilla disclosed herein has been given the variety denomination ‘PATMANROS3’.

CROSS REFERENCE TO RELATED APPLICATIONS

This application claims priority to the Community Plant Variety Rights application number 2020/1114, filed Apr. 23, 2020, which is herein incorporated by reference.

BACKGROUND OF THE INVENTION

Parentage: The new plant originated as a seedling selection from the open pollination of a plurality of cultivated Mandevilla sanderi ‘Velvet’ plants (not patented), the seed parent, and unnamed Mandevilla sanderi plants (not patented) in the spring of 2017. The true pollen parent is unknown. Seed was collected from the ‘Velvet’ plants and germinated at a greenhouse in Klazienaveen, The Netherlands. The resulting seedlings were grown to maturity and observed for unique characteristics. In March of 2018, the claimed plant was observed to exhibit a unique flower color relative to the other seedlings from said cross of 2017 and was selected for commercialization.

Asexual Reproduction: Asexual reproduction of the new cultivar ‘PATMANROS3’, by way of softwood stem cuttings, was first initiated in March of 2018 in Klazienaveen, The Netherlands. Through more than 6 subsequent generations, the unique features of this cultivar have proven to be stable and true to type.

SUMMARY OF THE INVENTION

The cultivar ‘PATMANROS3’ has not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment such as temperature, day length, and light intensity, without, however, any variance in genotype. The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘PATMANROS3’. These characteristics in combination distinguish ‘PATMANROS3’ as a new and distinct Mandevilla cultivar:

-   -   1. Mandevilla ‘PATMANROS3’ exhibits an upright, freely branching         growth habit; and     -   2. Mandevilla ‘PATMANROS3’ ‘PATMANROS2’ exhibits an abundance of         dark green foliage; and     -   3. Mandevilla ‘PATMANROS3’ exhibits large flowers; and     -   4. Mandevilla ‘PATMANROS3’ exhibits flowers with a white outer         corolla tube; and     -   5. Mandevilla ‘PATMANROS3’ exhibits flower petals that are very         light red-purple, generally appearing as very pale pink, which         become progressively darker red-purple towards and at the         margins when fully opened; and     -   6. Mandevilla ‘PATMANROS3’ exhibits with a dark red-purple to         orange-red inner corolla tube.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 illustrates, as nearly true as it is reasonably possible to make the same in color photographs of this type, an exemplary 12 month old ‘PATMANROS3’ plant in a 17 cm nursery pot, grown in a greenhouse in Klazienaveen, The Netherlands.

FIG. 2 illustrates, as nearly true as it is reasonably possible to make the same in color photographs of this type, the mature foliage of ‘PATMANROS3’.

FIG. 3 illustrates, as nearly true as it is reasonably possible to make the same in color photographs of this type, an exemplary flower of ‘PATMANROS3’.

BOTANICAL DESCRIPTION OF THE PLANT

The following observations and measurements were made in April of 2021 and describe averages from a sample set of six specimens of 12 month-old ‘PATMANROS3’ plants grown in 17 cm nursery pots grown in a greenhouse in Klazienaveen, The Netherlands. Plants were produced using conventional greenhouse production protocols for Mandevilla which consisted of regular overhead and ebb and flood irrigation and fertigation applications. Pest or disease control measures were utilized in production as required. Plants were produced with full sun exposure and no photoperiodic treatments or artificial light was given to the plants.

Those skilled in the art will appreciate that certain characteristics will vary with older or, conversely, with younger plants. ‘PATMANROS3’ has not been observed under all possible environmental conditions. Where dimensions, sizes, colors and other characteristics are given, it is to be understood that such characteristics are approximations or averages set forth as accurately as practicable. The phenotype of the variety may differ from the descriptions set forth herein with variations in environmental, climactic and cultural conditions. Color notations are based on The Royal Horticultural Society Colour Chart, The Royal Horticultural Society, London, 2015 (sixth edition).

A botanical description of ‘PATMANROS3’ and comparisons with the parents and most similar commercial variety of Mandevilla are provided below.

-   Plant description:     -   -   Growth habit.—Vining perennial; broad upright.         -   Plant shape.—Ovate to obovate to broad obovate.         -   Average height from base to top of foliage.—58.8 cm.         -   Average height from base to top of the floral plane.—54.0             cm.         -   Average width.—36.2 cm.         -   Growth rate.—Moderately fast.         -   Plant vigor.—Moderately vigorous.         -   Propagation method.—Softwood stem cuttings; rooting is in             initiated in approximately 21 days, with a fully rooted             cutting in approximately 6 weeks, when grown in a greenhouse             with an ambient average temperature of 28 to 30 degrees             Celsius.         -   Time to produce a finished plant.—Approximately 9 to 12             months is required to produce a fully rooted and marketable             19 cm plant when grown under greenhouse conditions.         -   Disease and pest resistance or susceptibility.—Plants have             not been observed to be susceptible or resistant to             pathogens and pests common to Mandevilla sanderi.         -   Environmental tolerances.—Adapt to at least USDA Zones 10             and 12, and temperatures ranging from at least 5 degrees to             40 degrees Celsius; moderate tolerance to rain; low to             moderate tolerance to wind; low tolerance to drought. -   Root system:     -   -   General.—Freely branching; moderately dense rooting.         -   Texture.—Fibrous.         -   Color.—Greyed-orange, nearest to a mixture of RHS 165C and             166D. -   Stem:     -   -   Branching habit.—Basally branching main stem; freely             branching with vining lateral branches which are void of             tendrils or anchoring roots. Stems and branches exude a             milky exudate when damaged.         -   Number of main stems per plant.—8.         -   Number of lateral branches per plant.—16.         -   Aspect.—Rounded.         -   Length of lateral branches.—35.6 cm.         -   Diameter of lateral branches.—0.3 cm at the widest point.         -   Internode length on lateral branches.—5.7 cm.         -   Attitude.—Upright; angle is approximately 30 degrees from             vertical.         -   Strength.—Strong.         -   Texture and luster.—Glabrous and moderately glossy.         -   Color, juvenile.—Yellow-green, nearest to RHS 146B; surfaces             exposed to sunlight are a darker shade of yellow-green,             nearest to RHS 152A.         -   Color, mature.—Yellow-green, nearest to a mixture of RHS             146B and 146C; surfaces exposed to sunlight are             greyed-brown, nearest to a mixture of RHS N199A and N199B,             and heavily suffused with yellow-green, nearest to RHS 152A.         -   Color at internodes.—Yellow-green, nearest to RHS 144A;             surfaces exposed to sunlight are greyed-orange, nearest to             in between 166A and 166B.         -   Color of bark on main stems.—Greyed-brown, nearest to a             mixture of RHS N199C and N199D. -   Foliage:     -   -   Arrangement.—Opposite.         -   Division.—Simple.         -   Quantity.—Average of 14 leaves per lateral branch.         -   Lamina.—Dimensions — 6.3 cm long and 4.7 cm wide, on             average. Shape — Obovate to broad elliptic. Aspect — Flat to             very slightly carinate. Apex — Short apiculate to abruptly             acute. Base — Rounded to truncate. Margin — Entire; not             undulated. Pubescence, texture and luster of adaxial surface             — Glabrous, smooth, and glossy. Pubescence, texture and             luster of abaxial surface — Glabrous, smooth, and moderately             glossy. Color — Juvenile foliage, adaxial surface — Nearest             to in between green and yellow-green, RHS 137A and 146A, but             slightly darker. Juvenile foliage, abaxial surface —             Yellow-green, nearest to in between 146A and 146B. Mature             foliage, adaxial surface — Nearest to in between green and             greyed-green, RHS 139A and N189A, but darker. Mature             foliage, abaxial surface — Yellow-green, nearest to in             between RHS 146B and 147B. Venation — Pattern — Pinnate.             Venation color, adaxial surface — Yellow-green, nearest to             RHS 144A. Venation color, abaxial surface — Yellow-green,             nearest to RHS 145B.         -   Petiole.—Length — 1.3 cm. Width — 0.15 cm. Texture — Smooth             and glabrous. Luster — Moderately glossy. Strength —             Moderately strong. Color, adaxial surface — Yellow-green,             nearest to RHS 152A. Color, abaxial surface — Yellow-green,             nearest to RHS 145A. -   Inflorescence:     -   -   Inflorescence arrangement.—Axillary raceme bearing 2 to 6             flowers.         -   Natural flowering season.—Long flowering period; spring             through autumn in USDA Hardiness Zones 10 through 12.         -   Time to flower.—Approximately 10 weeks from planting a             rooted cutting.         -   Dimensions.—13.2 cm long and 10.1 cm in diameter.         -   Quantity of flowers per inflorescence.—4 on average; varying             from 3 to 5.         -   Quantity of flowers per plant.—5.         -   Quantity of flower buds per plant.—31.         -   Quantity of flowers and flower buds per plant.—36.         -   Peduncle.—Dimensions — 6.8 cm long and 0.2 cm in diameter.             Aspect — Upward and outward; at approximately 30 degrees to             the lateral branch axis. Strength — Moderately strong.             Texture and luster — Glabrous and moderately glossy. Color —             Green, nearest to a mixture of RHS 143A and 143B. -   Bud:     -   -   Shape.—Narrow oblanceolate.         -   Dimensions.—5.3 cm long and 0.9 cm in diameter.         -   Pubescence, texture and luster.—Glabrous, smooth and very             slightly glossy.         -   Color.—The distal one-quarter portion of the bud is red,             nearest to RHS 39B; the middle portion is yellow-green,             nearest to RHS 145C; and, the proximal one-third portion of             the bud is yellow-green, nearest to RHS 145A. -   Flower:     -   -   Flowering habit.—Moderately free flowering.         -   Shape.—Funnelform.         -   Flower vertical height.—6.8 cm.         -   Flower width.—6.8 cm.         -   Flower depth.—6.3 cm.         -   Aspect.—Flowers are outward facing.         -   Fragrance.—A faint pleasant fragrance; acidic-sweet.         -   Lastingness.—Approximately 10 days.         -   Persistent.—Self-cleaning.         -   Pedicels.—Dimensions — 1.8 cm long and 0.2 cm in diameter.             Aspect — Upward and outward; approximately 30 degrees to the             peduncle axis. Strength — Moderately strong. Texture and             luster — Glabrous, smooth, and moderately glossy. Color —             Yellow-green, nearest to RHS 152B.         -   Corolla throat.—Shape — In between cylindrical and conical.             Depth — 3.3 cm. Diameter — 1.3 cm. Texture — Glabrous;             smooth. Outer color — Red-purple, nearest to RHS 62D. Inner             color — Red-purple, nearest to RHS 62C, and fading to             orange-red towards the narrowest portion of the throat,             nearest to a mixture of RHS 34A and 34B. Veins are             yellow-orange, nearest to RHS 18B.         -   Corolla tube.—Shape — Near cylindrical. Depth — 1.8 cm.             Diameter — 0.4 cm, distally, where the tube begins to widen.             Texture — Glabrous; smooth. Outer color, when fully opened —             Yellow-green, nearest to RHS 145A. No visible venation.             Inner color, when fully opened — Yellow-green, nearest to             RHS 151D. No visible venation.         -   Petals.—Quantity of Petals — 5. Arrangement — Single whorl;             petals imbricate and fused into an elongated tube at the             base; two-thirds of the petals are fused. Shape of petal             lobes — Spatulate. Dimensions, free portion of petals — 7.9             cm long and 3.3 cm wide. Apex — Unequal short apiculate.             Base — Truncate; fused at the base. Margin — Entire;             moderately to highly undulated. Aspect — Moderately             reflexed. Pubescence, texture and luster of upper surface —             Glabrous, velvety and very slightly glossy. Pubescence,             texture and luster of lower surface — Glabrous, moderately             velvety and slightly glossy. Petal lobe color when opening,             upper surface — Red-purple, nearest to RHS N57B, and fading             to a lighter shade of red-purple towards the throat, nearest             to RHS 62C. Petal lobe color when opening, lower surface —             Red-purple, nearest to RHS 62A; central longitudinal band             and base of the petals towards the floral throat are             red-purple, RHS 69D. Petal lobe color when fully opened,             upper surface — Red-purple, nearest to RHS 62A, and becoming             darker towards the margins, nearest to RHS 61D; lighter             towards the throat, nearest to RHS 62C. No visible venation.             Color do not fade with age. Petal lobe color when fully             opened, lower surface — Red-purple, nearest to a mixture of             RHS 69B and 69C, and fading darker towards the margins,             nearest to RHS 62B. No visible venation. Colors do not fade             with age.         -   Calyx.—Shape — Rotate; single whorl of sepals. Dimensions —             0.6 cm in diameter and 0.5 cm tall. Sepals — Calyx             dimensions — 0.7 cm in diameter and 0.2 cm tall. Arrangement             — Sepals are free, rotate. Quantity — 5. Shape — Narrow             triangular to lanceolate. Sepal dimensions — 0.7 cm long and             0.2 cm wide at the base. Apex — Narrow acuminate. Base —             Cuneate. Margin — Entire; not undulated. Pubescence, texture             and luster, upper surface — Smooth; glabrous; slightly             glossy. Pubescence, texture and luster, lower surface —             Smooth; glabrous; very slightly glossy. Color when opening,             upper surface — Yellow-green, nearest to RHS 145A; apex is             suffused with greyed-red, nearest to RHS 179B. Color when             opening, lower surface — Yellow-green, nearest to RHS 145A;             apex is suffused with greyed-red, nearest to RHS 179B. Color             when fully opened, upper surface — Yellow-green, nearest to             RHS 145A; moderately to heavily suffused with greyed-red,             RHS 181B, at the apex. Color when fully opened, lower             surface — Yellow-green, nearest to RHS 145A; moderately to             heavily suffused with greyed-red, RHS 181B, at the apex. -   Reproductive organs:     -   -   Androecium.—Stamen quantity — 5. Attachment — Adnate.             Filament length — 0.3 cm. Filament color — Yellow-green,             nearest to RHS 151D. Anther attachment — Basifixed. Anther             shape — Narrow sagitate. Anther length — 1.0 cm. Anther             width — 0.125 cm. Anther color — Greyed-yellow, nearest to             RHS 162C. Anther aspect — The five anthers are touching at             their apices, thus forming a cone of anthers. Pollen,             presence — Scarce. Pollen color — White, RHS 155A.         -   Gynoecium.—Pistil quantity — One. Pistil length — 2.3 cm.             Style length — 2.1 cm. Style color — Yellow-green, nearest             to RHS 150D. Stigma shape — Club-shaped. Stigma length —             0.2 cm. Stigma diameter — 0.2 cm. Stigma color —             Yellow-green, nearest to RHS 150B. Ovary color —             Yellow-green, nearest to RHS 144C. -   Seed and fruit: None observed.

COMPARISONS WITH THE PARENT PLANTS

Plants of the new cultivar ‘PATMANROS3’ differ from the seed parent, Mandevilla ‘Velvet’ (not patented) by the characteristics described in Table 1.

TABLE 1 Characteristic ‘PATMANROS3’ ‘Velvet’ General coloration of Very light red-purple and Medium to dark the flowers when fully becoming progressively red-purple. opened. darker towards the margins.

COMPARISON WITH THE MOST SIMILAR MANDEVILLA CULTIVAR KNOWN TO THE INVENTOR

Plants of the new cultivar ‘PATMANROS3’ differ from the commercial variety, Mandevilla ‘PATMANCR’ (U.S. Plant Pat. No. 29,797), in the following characteristics described in Table 2 below.

TABLE 2 Characteristic ‘PATMANROS3’ ‘PATMANCR’ Growth habit. More free branching and Less branching and less more densely foliaged densely foliaged than than ‘PATMANCR’ ‘PATMANROS3’. Flower size. Smaller than Larger than ‘PATMANCR’. ‘PATMANROS3’. General coloration Very light red-purple and Light red-purple. of the flowers when becoming progressively fully opened. darker towards the margins. 

That which is claimed is:
 1. A new and distinct variety of Mandevilla plant named ‘PATMANROS3’, substantially as described and illustrated herein. 